CBERS 2B (China-Brazil Earth Resources Satellite 2B), also known as Zi ... Yuan 2B, is a China-Brazil joint craft that was launched by a Long March 4B rocket from Taiyuan Satellite Launch Center in Shanxi province at 03:26 UT on 19 September 2007. The 1.5 tonne, 1.8 m x 2.0 m x 2.2 m, triaxially-stabilized craft carries a low 20 m resolution, and a higher 2.5 m resolution camera. The data will help in crop estimation, urban planning, water resource management, and military intelligence.